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Citation:

Study on the Growth of One-year-old Litsea cubeba Seedlings in Mountainous Area of Guizhou Province

  • Received Date: 2013-03-12
  • The annual growth rhythm of Litsea cubeba seedling was studied. The average thousand-grain weight of L. cubeba was 35 g, and the germination rate was higher than 70%. The results of cluster analysis showed that, the growth period could be divided into 4 stages, i.e. the stage of seedling emergence (from March 2 to March 17), the initial stage of growth (from March 18 to May 31), the vigorous growth stage (from June 11 to August 29) and the late growth stage (from August 30 to December 27). The height and diameter of one-year-old seedling were fit with logistic curve law, and the growth process followed a "slow-fast-slow" curve. The equation of average daily growth showed that the fastest growth appeared in July which had the highest monthly average temperature. This conclusion provided a reference for the seedling stage management of L. cubeba forest. The authors recommend vigorously developing L. cubeba forest in the mountainous area of Guizhou Province, and providing scientific and technological support to the forest tenure reform.
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Study on the Growth of One-year-old Litsea cubeba Seedlings in Mountainous Area of Guizhou Province

  • 1. Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, Yunnan, China
  • 2. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China

Abstract: The annual growth rhythm of Litsea cubeba seedling was studied. The average thousand-grain weight of L. cubeba was 35 g, and the germination rate was higher than 70%. The results of cluster analysis showed that, the growth period could be divided into 4 stages, i.e. the stage of seedling emergence (from March 2 to March 17), the initial stage of growth (from March 18 to May 31), the vigorous growth stage (from June 11 to August 29) and the late growth stage (from August 30 to December 27). The height and diameter of one-year-old seedling were fit with logistic curve law, and the growth process followed a "slow-fast-slow" curve. The equation of average daily growth showed that the fastest growth appeared in July which had the highest monthly average temperature. This conclusion provided a reference for the seedling stage management of L. cubeba forest. The authors recommend vigorously developing L. cubeba forest in the mountainous area of Guizhou Province, and providing scientific and technological support to the forest tenure reform.

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